International Stereotactic Radiosurgery Society

A global community of experts who share a passion for Stereotactic Radiosurgery (SRS), Stereotactic Body Radiation Therapy (SBRT) and other focal therapies.

ISRS 2027 CNS Summit returns to Geneva!

June 17th – 18th, 2027

Learn. Share. Excel.

The latest news, education, and events.

Upcoming Webinar

September 3, 2026

SRS for Multiple Brain Metastases: Clinical Experience and the Future of AI-based Automated Segmentation
presented by Dr. Raju Raval (in partnership with Siemens-Healthineers)

Newly ISRS-Certified Center

Costa Rican Oncology Center

The International Stereotactic Radiosurgery Society (ISRS) announces the first center in Latin America to receive SRS and SBRT certification: the Costa Rican Oncology Center. Congratulations to the team for their continued excellence and commitment to advancing patient care!

New ISRS SBRT Guidelines

May 2026 Publication

New ISRS practice guidelines on stereotactic body radiotherapy for locally advanced pancreatic adenocarcinoma have been published in Practical Radiation Oncology.

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"One of the values of a group like ISRS is that it's like minded individuals coming together, collaborating, sharing ideas. And a meeting like this every couple of years is very reinvigorating because you remember that other people are interested in the same things that you are. And we're all talking about the same types of topics. And it's really lovely to be able to do that in person instead of virtually. You don't get the same impact that you do when you're together as a group."